1. Cooking oil has a mass of 22.75 g and a volume of 25 mL . What is its density ? Show your work . 2.A piece of lead has a mass of 170 g and a volume of 15 cm^3 What is its density? Show your work.

3. A helium balloon has a mass of 0.036 g and a density of 0.00018 g/cm^ 3 What is the volume ? Show your work

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.